Since 1974, RainWise has built its identity around American-made weather instrumentation and the inventive work of founder John Baer. The privately owned Pennsylvania company became known for its tipping-bucket rain gauge design and first digital weather station, and today operates from Nielsen-Kellerman’s production facility in Boothwyn. Its equipment turns local weather conditions into usable data for professional and industrial users.
Nielsen-Kellerman CoBorn in 1978 from a rowing coach’s request, Nielsen-Kellerman designs and builds rugged measurement instruments and performance electronics for outdoor and technical work. The Boothwyn manufacturer remains committed to U.S. production, assembling, testing, and calibrating products such as its Kestrel weather meters and NK rowing systems for customers ranging from wildland firefighters to Olympic athletes. Its 25,000-square-foot Pennsylvania facility is also home to brands expanded through acquisitions, including RainWise and MagnetoSpeed.334519BOOTHWYN, PA
Earth NetworksFor roughly two decades, Earth Networks has built a proprietary weather-data network intended to make environmental conditions more useful in the moments when decisions matter. Based in Germantown, Maryland, the company serves organizations that need hyperlocal weather intelligence, particularly for safety and operational planning, with coverage spanning six continents. Its quality management system is registered to ISO 9001:2015.GERMANTOWN, MD
JAMAR TechnologiesJAMAR Technologies traces its roots to 1978, when James Martin founded the JAMAR Sales Company as a distributor before building its own equipment to give customers more direct service and support. Based in Pennsylvania, the company now serves public and private agencies worldwide with traffic data collection and distance-measuring equipment, backed by more than 45 years in the field.334514HATFIELD, PA
Sigma Controls IncSigma Controls, Inc. is a Pennsylvania corporation founded in 1985 that manufactures state of the art instrumentation for the measurement and control of pressure, level and flow applications commonly found in water, wastewater and environmental industries.PERKASIE, PA